FLUID ME CHANICS D203 SAE SOLUTIONS TUTORIAL 1 - …

FLUID MECHANICS D203 SAE SOLUTIONS TUTORIAL 1 - FLUID FLOW theory No. 1 1. Describe the principle of operation of the following types of viscometers. a. Redwood Viscometers. b. British Standard 188 glass U tube viscometer. c. British Standard 188 Falling Sphere Viscometer. d. Any form of Rotational Viscometer The SOLUTIONS are contained in part 1 of the TUTORIAL . No. 2 1. Oil flows in a pipe 80 mm bore diameter with a mean velocity of m/s. The density is 890 kg/m3 and the viscosity is Ns/m2. Show that the flow is laminar and hence deduce the pressure loss per metre length. x x 890 udRe=== Since this is less than 2000 flow is laminar so Poiseuille s equation applies. Pa x 1 x x 32d32 2 p22=== 2. Oil flows in a pipe 100 mm bore diameter with a Reynolds Number of 500. The density is 800 kg/m3. Calculate the velocity of a streamline at a radius of 40 mm. The viscosity = Ns/m2.

SAE SOLUTIONS TUTORIAL 1 - FLUID FLOW THEORY ASSIGNMENT 3 1. A pipe is 25 km long and 80 mm bore diameter. The mean surface roughness is 0.03 mm. It carries oil of density 825 kg/m 3 at a rate of 10 kg/s. The dynamic viscosity is 0.025 N s/m 2. Determine the friction coefficient using the Moody Chart and calculate the friction head. (Ans. 3075 m.)

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  Fluid, Flows, Theory, 1 fluid flow theory

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